Five-machine-head pure hydraulic hoop bending machine

Abstract

The invention discloses a five-machine-head pure hydraulic hoop bending machine. The five-machine-head pure hydraulic hoop bending machine comprises a machine base, five machine heads, a first oil supply mechanism and a second oil supply mechanism; the five machine heads are sequentially arranged side by side and movably connected to the machine base; a pressing mechanism is arranged below each machine head, each pressing mechanism comprises a pressing oil cylinder, and when the output end of each pressing oil cylinder extends to abut against the machine base, movement of the machine heads islimited; each machine head comprises a hoop bending mechanism; each hoop bending mechanism comprises a bend disc, a bend shaft, a mandrel, a telescopic oil cylinder, a gear shaft and a bending oil cylinder; the bend shafts are eccentrically arranged at the bend discs correspondingly; the mandrels penetrate through the circle centers of the bend discs until the head ends of the mandrels are opposite to the bend shafts correspondingly; the telescopic oil cylinders drive the mandrels to stretch relative to the bend discs correspondingly; the gear shafts are sleeved at the tail ends of the mandrels correspondingly, and the end parts of the gear shafts are connected with the bend discs correspondingly; first racks are arranged at the output ends of the bending oil cylinders correspondingly andare engaged with teeth of the gear shafts correspondingly. The whole machine is hydraulically driven, so that the five-machine-head pure hydraulic hoop bending machine has the advantages of simple structure, low failure rate and good locking convenience effect.

Description

technical field [0001] The invention relates to the field of steel bar processing equipment, in particular to a five-head pure hydraulic hoop bending machine. Background technique [0002] Most of the current five-head hoop bending machines use hydraulic and pneumatic hybrid power, which has a complex structure and high failure rate; the positioning of the machine head adopts a manual mechanical locking device, which is complicated to operate and has poor positioning effect; the bending angle of the hoop bending machine is triggered by positioning Switch control, angle adjustment gear is fixed, it is impossible to obtain more different bending angles, and the adjustment is only done manually, and some use built-in encoders to detect bending angles, which is difficult to install, debug and maintain. Contents of the invention [0003] Therefore, it is necessary to provide a five-head pure hydraulic hoop bending machine to solve the problems of complex structure, high failure...

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Problems solved by technology

[0003] Therefore, it is necessary to provide a five-head pure hydraulic hoop bending machine to solve the problems of complex structure, high failure rate and poor manual locking effect of the headless hoop bending machine in the prior art

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